[spangry]

I imagine this is a pretty murky area of medical science; there are so many confounding factors. It could be anything ranging from physical inactivity caused by depression ('psychomotor retardation') to abnormal hormone/catecholamine fluctuations or levels having some larger systemic effect.

Even in the more well-defined case of acute heart failure caused by 'stress' (Takotsubo Cardiomyopathy [0], or Broken Heart Syndrome) there's still a great deal of uncertainty about the exact cause.

All that aside, I really do hope things get better for you (or at least don't become unmanageable). My depression has gotten completely out of control for the past two years, and this has coincided with a noticeable decline in my physical health (including high blood pressure). It sucks.

[0] https://en.wikipedia.org/wiki/Takotsubo_cardiomyopathy#Cause...